Home / 129,411.37-194,136.65-40,656.53

Finding the Fourth Proportional to 129,411.37, 194,136.65 and 40,656.53

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Solution

The fourth proportional to 129,411.37, 194,136.65 and 40,656.53 is: 60,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,411.37 : 194,136.65 = 40,656.53 : x
  2. Step 2: Convert to fraction form
    129,411.37/194,136.65 = 40,656.53/x
  3. Step 3: Cross multiply
    129,411.37x = 194,136.65 × 40,656.53
  4. Step 4: Simplify right side
    129,411.37x = 7,892,922,969.35
  5. Step 5: Solve for x
    x = 7,892,922,969.35/129,411.37
  6. Step 6: Final answer
    x = 60,990.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.